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Message-ID: <20211104143809.GB6499@xsang-OptiPlex-9020>
Date: Thu, 4 Nov 2021 22:38:09 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Nicolas Saenz Julienne <nsaenzju@...hat.com>
Cc: lkp@...ts.01.org, lkp@...el.com, akpm@...ux-foundation.org,
linux-kernel@...r.kernel.org, linux-mm@...ck.org,
frederic@...nel.org, tglx@...utronix.de, peterz@...radead.org,
mtosatti@...hat.com, nilal@...hat.com, mgorman@...e.de,
linux-rt-users@...r.kernel.org, vbabka@...e.cz, cl@...ux.com,
ppandit@...hat.com, Nicolas Saenz Julienne <nsaenzju@...hat.com>
Subject: [mm/page_alloc] 5541e53659: BUG:spinlock_bad_magic_on_CPU
Greeting,
FYI, we noticed the following commit (built with gcc-9):
commit: 5541e5365954069e4c7b649831c0e41bc9e5e081 ("[PATCH v2 2/3] mm/page_alloc: Convert per-cpu lists' local locks to per-cpu spin locks")
url: https://github.com/0day-ci/linux/commits/Nicolas-Saenz-Julienne/mm-page_alloc-Remote-per-cpu-page-list-drain-support/20211104-010825
base: https://github.com/hnaz/linux-mm master
patch link: https://lore.kernel.org/lkml/20211103170512.2745765-3-nsaenzju@redhat.com
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+--------------------------------------------+------------+------------+
| | 69c421f2b4 | 5541e53659 |
+--------------------------------------------+------------+------------+
| boot_successes | 11 | 0 |
| boot_failures | 0 | 11 |
| BUG:spinlock_bad_magic_on_CPU | 0 | 11 |
| BUG:using_smp_processor_id()in_preemptible | 0 | 11 |
+--------------------------------------------+------------+------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>
[ 0.161872][ T0] BUG: spinlock bad magic on CPU#0, swapper/0
[ 0.162248][ T0] lock: 0xeb24bef0, .magic: 00000000, .owner: swapper/0, .owner_cpu: 0
[ 0.162767][ T0] CPU: 0 PID: 0 Comm: swapper Not tainted 5.15.0-rc7-mm1-00437-g5541e5365954 #1
[ 0.163325][ T0] Call Trace:
[ 0.163524][ T0] dump_stack_lvl (lib/dump_stack.c:107 (discriminator 4))
[ 0.163802][ T0] dump_stack (lib/dump_stack.c:114)
[ 0.164050][ T0] spin_bug (kernel/locking/spinlock_debug.c:70 kernel/locking/spinlock_debug.c:77)
[ 0.164296][ T0] do_raw_spin_unlock (arch/x86/include/asm/atomic.h:29 include/linux/atomic/atomic-instrumented.h:28 include/asm-generic/qspinlock.h:28 kernel/locking/spinlock_debug.c:100 kernel/locking/spinlock_debug.c:140)
[ 0.164624][ T0] _raw_spin_unlock_irqrestore (include/linux/spinlock_api_smp.h:160 kernel/locking/spinlock.c:194)
[ 0.164971][ T0] free_unref_page (include/linux/spinlock.h:423 mm/page_alloc.c:3400)
[ 0.165253][ T0] free_the_page (mm/page_alloc.c:699)
[ 0.165521][ T0] __free_pages (mm/page_alloc.c:5453)
[ 0.165785][ T0] add_highpages_with_active_regions (include/linux/mm.h:2511 arch/x86/mm/init_32.c:416)
[ 0.166179][ T0] set_highmem_pages_init (arch/x86/mm/highmem_32.c:30)
[ 0.166501][ T0] mem_init (arch/x86/mm/init_32.c:749 (discriminator 2))
[ 0.166749][ T0] start_kernel (init/main.c:842 init/main.c:988)
[ 0.167026][ T0] ? early_idt_handler_common (arch/x86/kernel/head_32.S:417)
[ 0.167369][ T0] i386_start_kernel (arch/x86/kernel/head32.c:57)
[ 0.167662][ T0] startup_32_smp (arch/x86/kernel/head_32.S:328)
[ 1.272601][ T0] Initializing Movable for node 0 (00000000:00000000)
[ 1.563704][ T0] Checking if this processor honours the WP bit even in supervisor mode...Ok.
[ 1.564312][ T0] Memory: 2895940K/3145208K available (8028K kernel code, 4874K rwdata, 4088K rodata, 2016K init, 8452K bss, 249268K reserved, 0K cma-reserved, 2252680K highmem)
[ 1.565333][ T0] random: get_random_u32 called from __kmem_cache_create+0x13/0x3b8 with crng_init=0
[ 1.565532][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 1.566585][ T0] Stack Depot allocating hash table with kvmalloc
[ 1.567566][ T0] Node 0, zone DMA: page owner found early allocated 0 pages
[ 1.569258][ T0] Node 0, zone Normal: page owner found early allocated 1057 pages
[ 1.574666][ T0] Node 0, zone HighMem: page owner found early allocated 0 pages
[ 1.575421][ T0] ODEBUG: selftest passed
[ 1.575737][ T0] trace event string verifier disabled
[ 1.576126][ T0] Dynamic Preempt: none
[ 1.576450][ T0] Running RCU self tests
[ 1.576727][ T0] rcu: Preemptible hierarchical RCU implementation.
[ 1.577149][ T0] rcu: RCU event tracing is enabled.
[ 1.577483][ T0] rcu: RCU lockdep checking is enabled.
[ 1.577833][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2.
[ 1.578294][ T0] rcu: RCU callback double-/use-after-free debug enabled.
[ 1.578744][ T0] rcu: RCU debug extended QS entry/exit.
[ 1.579100][ T0] RCU CPU stall warnings timeout set to 100 (rcu_cpu_stall_timeout).
[ 1.579611][ T0] Trampoline variant of Tasks RCU enabled.
[ 1.579978][ T0] Rude variant of Tasks RCU enabled.
[ 1.580311][ T0] Tracing variant of Tasks RCU enabled.
[ 1.580666][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
[ 1.581199][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[ 1.583788][ T0] NR_IRQS: 2304, nr_irqs: 56, preallocated irqs: 16
[ 1.584542][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0x(ptrval)-0x(ptrval)
[ 1.585258][ T0] printk: console [ttyS0] enabled
[ 1.585891][ T0] printk: bootconsole [earlyser0] disabled
[ 1.586621][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[ 1.587173][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8
[ 1.587491][ T0] ... MAX_LOCK_DEPTH: 48
[ 1.587814][ T0] ... MAX_LOCKDEP_KEYS: 8192
[ 1.588146][ T0] ... CLASSHASH_SIZE: 4096
[ 1.588477][ T0] ... MAX_LOCKDEP_ENTRIES: 32768
[ 1.588821][ T0] ... MAX_LOCKDEP_CHAINS: 65536
[ 1.589167][ T0] ... CHAINHASH_SIZE: 32768
[ 1.589504][ T0] memory used by lock dependency info: 4061 kB
[ 1.589904][ T0] memory used for stack traces: 2112 kB
[ 1.590264][ T0] per task-struct memory footprint: 2112 bytes
[ 1.590671][ T0] ACPI: Core revision 20210930
[ 1.591135][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns
[ 1.591886][ T0] APIC: Switch to symmetric I/O mode setup
[ 1.592284][ T0] Enabling APIC mode: Flat. Using 1 I/O APICs
[ 1.592710][ T0] masked ExtINT on CPU#0
[ 1.593593][ T0] ENABLING IO-APIC IRQs
[ 1.593859][ T0] init IO_APIC IRQs
[ 1.594227][ T0] apic 0 pin 0 not connected
[ 1.594688][ T0] IOAPIC[0]: Preconfigured routing entry (0-1 -> IRQ 1 Level:0 ActiveLow:0)
[ 1.595534][ T0] IOAPIC[0]: Preconfigured routing entry (0-2 -> IRQ 0 Level:0 ActiveLow:0)
[ 1.596221][ T0] IOAPIC[0]: Preconfigured routing entry (0-3 -> IRQ 3 Level:0 ActiveLow:0)
[ 1.596774][ T0] IOAPIC[0]: Preconfigured routing entry (0-4 -> IRQ 4 Level:0 ActiveLow:0)
[ 1.597320][ T0] IOAPIC[0]: Preconfigured routing entry (0-5 -> IRQ 5 Level:1 ActiveLow:0)
[ 1.597865][ T0] IOAPIC[0]: Preconfigured routing entry (0-6 -> IRQ 6 Level:0 ActiveLow:0)
[ 1.598409][ T0] IOAPIC[0]: Preconfigured routing entry (0-7 -> IRQ 7 Level:0 ActiveLow:0)
[ 1.598954][ T0] IOAPIC[0]: Preconfigured routing entry (0-8 -> IRQ 8 Level:0 ActiveLow:0)
[ 1.599498][ T0] IOAPIC[0]: Preconfigured routing entry (0-9 -> IRQ 9 Level:1 ActiveLow:0)
[ 1.600052][ T0] IOAPIC[0]: Preconfigured routing entry (0-10 -> IRQ 10 Level:1 ActiveLow:0)
[ 1.600618][ T0] IOAPIC[0]: Preconfigured routing entry (0-11 -> IRQ 11 Level:1 ActiveLow:0)
[ 1.601195][ T0] IOAPIC[0]: Preconfigured routing entry (0-12 -> IRQ 12 Level:0 ActiveLow:0)
[ 1.601760][ T0] IOAPIC[0]: Preconfigured routing entry (0-13 -> IRQ 13 Level:0 ActiveLow:0)
[ 1.602312][ T0] IOAPIC[0]: Preconfigured routing entry (0-14 -> IRQ 14 Level:0 ActiveLow:0)
[ 1.602865][ T0] IOAPIC[0]: Preconfigured routing entry (0-15 -> IRQ 15 Level:0 ActiveLow:0)
[ 1.603415][ T0] apic 0 pin 16 not connected
[ 1.603712][ T0] apic 0 pin 17 not connected
[ 1.604020][ T0] apic 0 pin 18 not connected
[ 1.604316][ T0] apic 0 pin 19 not connected
[ 1.604617][ T0] apic 0 pin 20 not connected
[ 1.604922][ T0] apic 0 pin 21 not connected
[ 1.605219][ T0] apic 0 pin 22 not connected
[ 1.605516][ T0] apic 0 pin 23 not connected
[ 1.605913][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 1.606361][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fa3704c1a9, max_idle_ns: 440795296692 ns
[ 1.607077][ T0] Calibrating delay loop (skipped) preset value.. 4389.83 BogoMIPS (lpj=8779664)
[ 1.607658][ T0] pid_max: default: 4096 minimum: 301
[ 1.611130][ T0] LSM: Security Framework initializing
[ 1.611497][ T0] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[ 1.613263][ T0] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[ 1.615945][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 1.616341][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
[ 1.616763][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization
[ 1.617348][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available!
[ 1.617350][ T0] Speculative Store Bypass: Vulnerable
[ 1.618335][ T0] L1TF: Kernel not compiled for PAE. No mitigation for L1TF
[ 1.618788][ T0] MDS: Vulnerable: Clear CPU buffers attempted, no microcode
[ 1.619423][ T0] Freeing SMP alternatives memory: 16K
[ 1.619943][ T1] smpboot: CPU0: Intel Xeon E312xx (Sandy Bridge) (family: 0x6, model: 0x2a, stepping: 0x1)
To reproduce:
# build kernel
cd linux
cp config-5.15.0-rc7-mm1-00437-g5541e5365954 .config
make HOSTCC=gcc-9 CC=gcc-9 ARCH=i386 olddefconfig prepare modules_prepare bzImage
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
# if come across any failure that blocks the test,
# please remove ~/.lkp and /lkp dir to run from a clean state.
---
0DAY/LKP+ Test Infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/lkp@lists.01.org Intel Corporation
Thanks,
Oliver Sang
View attachment "config-5.15.0-rc7-mm1-00437-g5541e5365954" of type "text/plain" (127969 bytes)
View attachment "job-script" of type "text/plain" (4885 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (23060 bytes)
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